/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package net.sf.l2j.gameserver.instancemanager;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.logging.Logger;

import javolution.text.TextBuilder;
import javolution.util.FastList;
import javolution.util.FastMap;
import net.sf.l2j.Config;
import net.sf.l2j.gameserver.GmListTable;
import net.sf.l2j.gameserver.idfactory.IdFactory;
import net.sf.l2j.gameserver.model.actor.instance.L2PcInstance;
import net.sf.l2j.gameserver.network.SystemMessageId;
import net.sf.l2j.gameserver.network.clientpackets.Say2;
import net.sf.l2j.gameserver.network.serverpackets.CreatureSay;
import net.sf.l2j.gameserver.network.serverpackets.L2GameServerPacket;
import net.sf.l2j.gameserver.network.serverpackets.NpcHtmlMessage;
import net.sf.l2j.gameserver.network.serverpackets.SystemMessage;

/**
 * Petition Manager
 * 
 * @author Tempy
 */
public final class PetitionManager {
	protected static final Logger _log = Logger.getLogger(PetitionManager.class
			.getName());
	private Map<Integer, Petition> _pendingPetitions;
	private Map<Integer, Petition> _completedPetitions;

	private static enum PetitionState {
		Pending, Responder_Cancel, Responder_Missing, Responder_Reject, Responder_Complete, Petitioner_Cancel, Petitioner_Missing, In_Process, Completed
	}

	private static enum PetitionType {
		Immobility, Recovery_Related, Bug_Report, Quest_Related, Bad_User, Suggestions, Game_Tip, Operation_Related, Other
	}

	public static PetitionManager getInstance() {
		return SingletonHolder._instance;
	}

	private class Petition {
		private long _submitTime = System.currentTimeMillis();
		private long _endTime = -1;
		private int _id;
		private PetitionType _type;
		private PetitionState _state = PetitionState.Pending;
		private String _content;
		private List<CreatureSay> _messageLog = new FastList<CreatureSay>();
		private L2PcInstance _petitioner;
		private L2PcInstance _responder;

		public Petition(L2PcInstance petitioner, String petitionText,
				int petitionType) {
			petitionType--;
			_id = IdFactory.getInstance().getNextId();
			if (petitionType >= PetitionType.values().length)
				_log.warning("PetitionManager:Petition : invalid petition type (received type was +1) : "
						+ petitionType);
			_type = PetitionType.values()[petitionType];
			_content = petitionText;
			_petitioner = petitioner;
		}

		protected boolean addLogMessage(CreatureSay cs) {
			return _messageLog.add(cs);
		}

		protected List<CreatureSay> getLogMessages() {
			return _messageLog;
		}

		public boolean endPetitionConsultation(PetitionState endState) {
			setState(endState);
			_endTime = System.currentTimeMillis();
			if (getResponder() != null && getResponder().isOnline() == 1)
				if (endState == PetitionState.Responder_Reject)
					getPetitioner()
							.sendMessage(
									"Your petition was rejected. Please try again later.");
				else {
					// Ending petition consultation with <Player>.
					SystemMessage sm = new SystemMessage(
							SystemMessageId.PETITION_ENDED_WITH_S1);
					sm.addString(getPetitioner().getName());
					getResponder().sendPacket(sm);
					if (endState == PetitionState.Petitioner_Cancel) {
						// Receipt No. <ID> petition cancelled.
						sm = new SystemMessage(
								SystemMessageId.RECENT_NO_S1_CANCELED);
						sm.addNumber(getId());
						getResponder().sendPacket(sm);
					}
				}
			// End petition consultation and inform them, if they are still
			// online.
			if (getPetitioner() != null && getPetitioner().isOnline() == 1)
				getPetitioner()
						.sendPacket(
								new SystemMessage(
										SystemMessageId.THIS_END_THE_PETITION_PLEASE_PROVIDE_FEEDBACK));
			getCompletedPetitions().put(getId(), this);
			return getPendingPetitions().remove(getId()) != null;
		}

		public String getContent() {
			return _content;
		}

		public int getId() {
			return _id;
		}

		public L2PcInstance getPetitioner() {
			return _petitioner;
		}

		public L2PcInstance getResponder() {
			return _responder;
		}

		public long getEndTime() {
			return _endTime;
		}

		public long getSubmitTime() {
			return _submitTime;
		}

		public PetitionState getState() {
			return _state;
		}

		public String getTypeAsString() {
			return _type.toString().replace("_", " ");
		}

		public void sendPetitionerPacket(L2GameServerPacket responsePacket) {
			if (getPetitioner() == null || getPetitioner().isOnline() == 0)
				// Allows petitioners to see the results of their petition when
				// they log back into the game.
				// endPetitionConsultation(PetitionState.Petitioner_Missing);
				return;
			getPetitioner().sendPacket(responsePacket);
		}

		public void sendResponderPacket(L2GameServerPacket responsePacket) {
			if (getResponder() == null || getResponder().isOnline() == 0) {
				endPetitionConsultation(PetitionState.Responder_Missing);
				return;
			}
			getResponder().sendPacket(responsePacket);
		}

		public void setState(PetitionState state) {
			_state = state;
		}

		public void setResponder(L2PcInstance respondingAdmin) {
			if (getResponder() != null)
				return;
			_responder = respondingAdmin;
		}
	}

	private PetitionManager() {
		System.out.println("Initializing PetitionManager");
		_pendingPetitions = new FastMap<Integer, Petition>();
		_completedPetitions = new FastMap<Integer, Petition>();
	}

	public void clearCompletedPetitions() {
		int numPetitions = getPendingPetitionCount();
		getCompletedPetitions().clear();
		_log.info("PetitionManager: Completed petition data cleared. "
				+ numPetitions + " petition(s) removed.");
	}

	public void clearPendingPetitions() {
		int numPetitions = getPendingPetitionCount();
		getPendingPetitions().clear();
		_log.info("PetitionManager: Pending petition queue cleared. "
				+ numPetitions + " petition(s) removed.");
	}

	public boolean acceptPetition(L2PcInstance respondingAdmin, int petitionId) {
		if (!isValidPetition(petitionId))
			return false;
		Petition currPetition = getPendingPetitions().get(petitionId);
		if (currPetition.getResponder() != null)
			return false;
		currPetition.setResponder(respondingAdmin);
		currPetition.setState(PetitionState.In_Process);
		// Petition application accepted. (Send to Petitioner)
		currPetition.sendPetitionerPacket(new SystemMessage(
				SystemMessageId.PETITION_APP_ACCEPTED));
		// Petition application accepted. Reciept No. is <ID>
		SystemMessage sm = new SystemMessage(
				SystemMessageId.PETITION_ACCEPTED_RECENT_NO_S1);
		sm.addNumber(currPetition.getId());
		currPetition.sendResponderPacket(sm);
		// Petition consultation with <Player> underway.
		sm = new SystemMessage(SystemMessageId.PETITION_WITH_S1_UNDER_WAY);
		sm.addString(currPetition.getPetitioner().getName());
		currPetition.sendResponderPacket(sm);
		return true;
	}

	public boolean cancelActivePetition(L2PcInstance player) {
		for (Petition currPetition : getPendingPetitions().values()) {
			if (currPetition.getPetitioner() != null
					&& currPetition.getPetitioner().getObjectId() == player
							.getObjectId())
				return currPetition
						.endPetitionConsultation(PetitionState.Petitioner_Cancel);
			if (currPetition.getResponder() != null
					&& currPetition.getResponder().getObjectId() == player
							.getObjectId())
				return currPetition
						.endPetitionConsultation(PetitionState.Responder_Cancel);
		}
		return false;
	}

	public void checkPetitionMessages(L2PcInstance petitioner) {
		if (petitioner != null)
			for (Petition currPetition : getPendingPetitions().values()) {
				if (currPetition == null)
					continue;
				if (currPetition.getPetitioner() != null
						&& currPetition.getPetitioner().getObjectId() == petitioner
								.getObjectId()) {
					for (CreatureSay logMessage : currPetition.getLogMessages())
						petitioner.sendPacket(logMessage);
					return;
				}
			}
	}

	public boolean endActivePetition(L2PcInstance player) {
		if (!player.isGM())
			return false;
		for (Petition currPetition : getPendingPetitions().values()) {
			if (currPetition == null)
				continue;
			if (currPetition.getResponder() != null
					&& currPetition.getResponder().getObjectId() == player
							.getObjectId())
				return currPetition
						.endPetitionConsultation(PetitionState.Completed);
		}
		return false;
	}

	protected Map<Integer, Petition> getCompletedPetitions() {
		return _completedPetitions;
	}

	protected Map<Integer, Petition> getPendingPetitions() {
		return _pendingPetitions;
	}

	public int getPendingPetitionCount() {
		return getPendingPetitions().size();
	}

	public int getPlayerTotalPetitionCount(L2PcInstance player) {
		if (player == null)
			return 0;
		int petitionCount = 0;
		for (Petition currPetition : getPendingPetitions().values()) {
			if (currPetition == null)
				continue;
			if (currPetition.getPetitioner() != null
					&& currPetition.getPetitioner().getObjectId() == player
							.getObjectId())
				petitionCount++;
		}
		for (Petition currPetition : getCompletedPetitions().values()) {
			if (currPetition == null)
				continue;
			if (currPetition.getPetitioner() != null
					&& currPetition.getPetitioner().getObjectId() == player
							.getObjectId())
				petitionCount++;
		}
		return petitionCount;
	}

	public boolean isPetitionInProcess() {
		for (Petition currPetition : getPendingPetitions().values()) {
			if (currPetition == null)
				continue;
			if (currPetition.getState() == PetitionState.In_Process)
				return true;
		}
		return false;
	}

	public boolean isPetitionInProcess(int petitionId) {
		if (!isValidPetition(petitionId))
			return false;
		Petition currPetition = getPendingPetitions().get(petitionId);
		return currPetition.getState() == PetitionState.In_Process;
	}

	public boolean isPlayerInConsultation(L2PcInstance player) {
		if (player != null)
			for (Petition currPetition : getPendingPetitions().values()) {
				if (currPetition == null)
					continue;
				if (currPetition.getState() != PetitionState.In_Process)
					continue;
				if (currPetition.getPetitioner() != null
						&& currPetition.getPetitioner().getObjectId() == player
								.getObjectId()
						|| currPetition.getResponder() != null
						&& currPetition.getResponder().getObjectId() == player
								.getObjectId())
					return true;
			}
		return false;
	}

	public boolean isPetitioningAllowed() {
		return Config.PETITIONING_ALLOWED;
	}

	public boolean isPlayerPetitionPending(L2PcInstance petitioner) {
		if (petitioner != null)
			for (Petition currPetition : getPendingPetitions().values()) {
				if (currPetition == null)
					continue;
				if (currPetition.getPetitioner() != null
						&& currPetition.getPetitioner().getObjectId() == petitioner
								.getObjectId())
					return true;
			}
		return false;
	}

	private boolean isValidPetition(int petitionId) {
		return getPendingPetitions().containsKey(petitionId);
	}

	public boolean rejectPetition(L2PcInstance respondingAdmin, int petitionId) {
		if (!isValidPetition(petitionId))
			return false;
		Petition currPetition = getPendingPetitions().get(petitionId);
		if (currPetition.getResponder() != null)
			return false;
		currPetition.setResponder(respondingAdmin);
		return currPetition
				.endPetitionConsultation(PetitionState.Responder_Reject);
	}

	public boolean sendActivePetitionMessage(L2PcInstance player,
			String messageText) {
		// if (!isPlayerInConsultation(player))
		// return false;
		CreatureSay cs;
		for (Petition currPetition : getPendingPetitions().values()) {
			if (currPetition == null)
				continue;
			if (currPetition.getPetitioner() != null
					&& currPetition.getPetitioner().getObjectId() == player
							.getObjectId()) {
				cs = new CreatureSay(player.getObjectId(),
						Say2.PETITION_PLAYER, player.getName(), messageText);
				currPetition.addLogMessage(cs);
				currPetition.sendResponderPacket(cs);
				currPetition.sendPetitionerPacket(cs);
				return true;
			}
			if (currPetition.getResponder() != null
					&& currPetition.getResponder().getObjectId() == player
							.getObjectId()) {
				cs = new CreatureSay(player.getObjectId(), Say2.PETITION_GM,
						player.getName(), messageText);
				currPetition.addLogMessage(cs);
				currPetition.sendResponderPacket(cs);
				currPetition.sendPetitionerPacket(cs);
				return true;
			}
		}
		return false;
	}

	public void sendPendingPetitionList(L2PcInstance activeChar) {
		TextBuilder htmlContent = new TextBuilder(
				"<html><body>"
						+ "<center><font color=\"LEVEL\">Current Petitions</font><br><table width=\"300\">");
		SimpleDateFormat dateFormat = new SimpleDateFormat("dd MMM HH:mm z");
		if (getPendingPetitionCount() == 0)
			htmlContent
					.append("<tr><td colspan=\"4\">There are no currently pending petitions.</td></tr>");
		else
			htmlContent
					.append("<tr><td></td><td><font color=\"999999\">Petitioner</font></td>"
							+ "<td><font color=\"999999\">Petition Type</font></td><td><font color=\"999999\">Submitted</font></td></tr>");
		for (Petition currPetition : getPendingPetitions().values()) {
			if (currPetition == null)
				continue;

			htmlContent.append("<tr><td>");
			if (currPetition.getState() != PetitionState.In_Process)
				htmlContent
						.append("<button value=\"View\" action=\"bypass -h admin_view_petition "
								+ currPetition.getId()
								+ "\" "
								+ "width=\"40\" height=\"15\" back=\"sek.cbui94\" fore=\"sek.cbui92\">");
			else
				htmlContent.append("<font color=\"999999\">In Process</font>");
			htmlContent.append("</td><td>"
					+ currPetition.getPetitioner().getName() + "</td><td>"
					+ currPetition.getTypeAsString() + "</td><td>"
					+ dateFormat.format(new Date(currPetition.getSubmitTime()))
					+ "</td></tr>");
		}
		htmlContent
				.append("</table><br><button value=\"Refresh\" action=\"bypass -h admin_view_petitions\" width=\"50\" "
						+ "height=\"15\" back=\"sek.cbui94\" fore=\"sek.cbui92\"><br><button value=\"Back\" action=\"bypass -h admin_admin\" "
						+ "width=\"40\" height=\"15\" back=\"sek.cbui94\" fore=\"sek.cbui92\"></center></body></html>");
		NpcHtmlMessage htmlMsg = new NpcHtmlMessage(0);
		htmlMsg.setHtml(htmlContent.toString());
		activeChar.sendPacket(htmlMsg);
	}

	public int submitPetition(L2PcInstance petitioner, String petitionText,
			int petitionType) {
		// Create a new petition instance and add it to the list of pending
		// petitions.
		Petition newPetition = new Petition(petitioner, petitionText,
				petitionType);
		int newPetitionId = newPetition.getId();
		getPendingPetitions().put(newPetitionId, newPetition);
		// Notify all GMs that a new petition has been submitted.
		String msgContent = petitioner.getName()
				+ " has submitted a new petition."; // (ID:
													// " + newPetitionId + ").";
		GmListTable.broadcastToGMs(new CreatureSay(petitioner.getObjectId(),
				17, "Petition System", msgContent));
		return newPetitionId;
	}

	public void viewPetition(L2PcInstance activeChar, int petitionId) {
		if (!activeChar.isGM())
			return;

		if (!isValidPetition(petitionId))
			return;

		Petition currPetition = getPendingPetitions().get(petitionId);
		TextBuilder htmlContent = new TextBuilder("<html><body>");
		SimpleDateFormat dateFormat = new SimpleDateFormat("EEE dd MMM HH:mm z");
		htmlContent.append("<center><br><font color=\"LEVEL\">Petition #"
				+ currPetition.getId() + "</font><br1>");
		htmlContent
				.append("<img src=\"L2UI.SquareGray\" width=\"200\" height=\"1\"></center><br>");
		htmlContent.append("Submit Time: "
				+ dateFormat.format(new Date(currPetition.getSubmitTime()))
				+ "<br1>");
		htmlContent.append("Petitioner: "
				+ currPetition.getPetitioner().getName() + "<br1>");
		htmlContent.append("Petition Type: " + currPetition.getTypeAsString()
				+ "<br>" + currPetition.getContent() + "<br>");
		htmlContent
				.append("<center><button value=\"Accept\" action=\"bypass -h admin_accept_petition "
						+ currPetition.getId()
						+ "\""
						+ "width=\"50\" height=\"15\" back=\"sek.cbui94\" fore=\"sek.cbui92\"><br1>");
		htmlContent
				.append("<button value=\"Reject\" action=\"bypass -h admin_reject_petition "
						+ currPetition.getId()
						+ "\" "
						+ "width=\"50\" height=\"15\" back=\"sek.cbui94\" fore=\"sek.cbui92\"><br>");
		htmlContent
				.append("<button value=\"Back\" action=\"bypass -h admin_view_petitions\" width=\"40\" height=\"15\" back=\"sek.cbui94\" "
						+ "fore=\"sek.cbui92\"></center>");
		htmlContent.append("</body></html>");
		NpcHtmlMessage htmlMsg = new NpcHtmlMessage(0);
		htmlMsg.setHtml(htmlContent.toString());
		activeChar.sendPacket(htmlMsg);
	}

	@SuppressWarnings("synthetic-access")
	private static class SingletonHolder {
		protected static final PetitionManager _instance = new PetitionManager();
	}
}
